The famous Tycho supernova of 1572, witnessed by Danish astronomer Tycho Brahe, didn't explode in empty space as has been assumed. New analysis reveals it detonated inside a planetary nebula, the ghostly shell of gas expelled by an earlier dying star. The evidence lies in two "ear" shaped structures that were sticking out from the remnant's main shell, matching similar features in three other supernovae previously identified as explosions within planetary nebulae. This discovery ...
The famous Tycho supernova of 1572, witnessed by Danish astronomer Tycho Brahe, didn't explode in empty space as has been assumed. New analysis reveals it detonated inside a planetary nebula, the ghostly shell of gas expelled by an earlier dying star. The evidence lies in two "ear" shaped structures that were sticking out from the remnant's main shell, matching similar features in three other supernovae previously identified as explosions within planetary nebulae. This discovery ...
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